Laser ablation behavior of SiHfC-based ceramics prepared from a single-source precursor: Effects of Hf-incorporation into SiC
发布时间：2021-09-04
点击次数：
影响因子：5.3
发表刊物：Journal of the European Ceramic Society
摘要：Laser ablation test of SiHfC-based ceramic nanocomposites as well as ceramic matrix composites (CMCs) was conducted by exposure to a CO2 laser beam in air. Laser ablation behavior and possible degradation mechanisms of dense monolithic HfC/SiC ceramic nanocomposites as well as of Cf/SiHfC CMCs were investigated. Dense SiC monoliths and Cf/SiC CMCs were exposed to same laser ablation conditions and considered as reference materials. The evolution of microstructure and chemical/phase composition of the studied ceramics was addressed by scanning electron microscopy (SEM) combined with energy dispersive X-ray spectroscopy (EDX) as well as by X-ray diffraction. The results reveal that from the center to the edge of the damaged region of the materials three sections with different surface morphologies and ablation mechanisms are identified. The comparation between the SiC-based monoliths and CMCs with and without Hf demonstrates the positive effects of Hf-incorporation on their laser ablation resistance.
合写作者：Lei Wang, Xinming Xu, Ralf Riedel
第一作者：Qingbo Wen
论文类型：期刊论文
通讯作者：Xingang Luan, Emanuel Ionescu
文献类型：J
卷号：39
期号：6
页面范围：2018-2027
是否译文：否
发表时间：2019-06-01
收录刊物：SCI
发布期刊链接：https://www.sciencedirect.com/science/article/pii/S0955221919300524
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